How severe is CVE-2025-40842?

CVE-2025-40842 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-40842 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-40842?

CVE-2025-40842 affects Ericsson Indoor Connect 8855 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-40842?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-40842 have an EU (EUVD) identifier?

Yes. CVE-2025-40842 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208983.

When was CVE-2025-40842 published?

CVE-2025-40842 was published on 2026-03-25 and last updated on 2026-06-17.

CVE-2025-40842

CVE-2025-40842 is a medium-severity vulnerability in Ericsson Indoor Connect 8855 Firmware with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v4: 8.5
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-208983
Weakness: CWE-79
Affected product: Ericsson Indoor Connect 8855 Firmware
Published: 2026-03-25
Last modified: 2026-06-17

Description

Ericsson Indoor Connect 8855 versions prior to 2025.Q3 contains a Cross-Site Scripting (XSS) vulnerability which, if exploited, can lead to unauthorized disclosure and modification of certain information.

Frequently asked questions

What is CVE-2025-40842?: Ericsson Indoor Connect 8855 versions prior to 2025.Q3 contains a Cross-Site Scripting (XSS) vulnerability which, if exploited, can lead to unauthorized disclosure and modification of certain information.
How severe is CVE-2025-40842?: CVE-2025-40842 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-40842 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-40842?: CVE-2025-40842 affects Ericsson Indoor Connect 8855 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-40842?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-40842 have an EU (EUVD) identifier?: Yes. CVE-2025-40842 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208983.
When was CVE-2025-40842 published?: CVE-2025-40842 was published on 2026-03-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:ericsson:indoor_connect_8855_firmware:*:*:*:*:*:*:*:*

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